During the incipient phase, what is the typical temperature of a fire?

In the incipient phase of a fire, temperatures typically begin to rise as combustion processes start. However, the temperature during this phase generally remains below 1,000°F. The correct understanding of fire behavior indicates that during the incipient phase, the fire is still establishing itself, and significant heat production is not yet achieved.

In this stage, fuels are igniting, and smoke is beginning to accumulate, which keeps the temperatures in the lower range, typically below 500°F. As the fire progresses to the growth stage, temperatures increase more dramatically as the flames spread and more fuel is consumed.

Understanding these phases of fire development is crucial for firefighters and first responders, as it helps in determining the appropriate action needed to control or extinguish a fire effectively.